Here's the Pentagon's evidence Assad used chemical weapons

The Pentagon released a map Thursday that
reportedly shows the flight pattern of a Syrian
aircraft that dropped chemical weapons on civilians
Tuesday.

A
Defense Department map showing what the Pentagon says is the
flight path of a Syrian military plane over Khan Sheikhoun on
April 4, the day of a chemical-weapons attack.Department of Defense

The map was released hours after President
Donald Trump ordered the U.S. military to fire 59 Tomahawk
missiles at a northern Syrian airbase, in retaliation for
Syrian President Bashar al-Assad’s attack.

"We have a very high level of confidence that the attacks were
carried out by aircraft under the direction of the Bashar
al-Assad regime, and we also have very high confidence that the
attacks involved the use of sarin nerve gas," U.S. Secretary of
State Rex Tillerson told reporters Thursday.

National Security Advisor H.R. McMaster similarly told
reporters "our intelligence community in cooperation with our
friends and partners and allies around the world collaborated to
determine with a very high degree of confidence precisely where
the location originated. And then, of course, the sorts of
chemicals that were used in the attack."

McMaster clarified that the strike will not cripple Assad’s
ability to use chemical weapons and is instead is meant to send a
deterrent message.

"The regime will maintain the certain capacity to commit mass
murder with chemical weapons, we think, beyond this particular
airfield. But it was aimed at this particular airfield for a
reason, because we could trace this murderous attack back to that
facility," he continued.